A spirobifluorene-based polymer of intrinsic microporosity with improved performance for gas separation.

Bezzu, C Grazia; Carta, Mariolino; Tonkins, Alexander; Jansen, Johannes C; Bernardo, Paola; Bazzarelli, Fabio; McKeown, Neil B · Adv Mater · 2012

basic_science · Level V

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Abstract

A highly gas-permeable polymer with enhanced selectivities is prepared using spirobifluorene as the main structural unit. The greater rigidity of this polymer of intrinsic microporosity (PIM-SBF) facilitates gas permeability data that lie above the 2008 Robeson upper bound, which is the universal performance indicator for polymer gas separation membranes.

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